For all you math nerds, geeks, or statisticians out there. Anyone have ideas on some mathematical method you can use to decide which phone you want to buy based on features, priorities, etc.? So far I've been very subjective in my decision making, creating lists of features and comparing them and using the Apple website. Is there some complex (or simple) mathematical way I can make these into numbers and model them to get some scoring to determine which phone I should actually buy based on numbers instead of general thinking?